chore(release): 4.1.6 [skip ci]

## [4.1.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.5...4.1.6) (2022-08-10)

### Bug Fixes

* fix abnormal mesh bounds error ([f60d6df](f60d6dfe60)), closes [#213](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/213) [#218](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/218)

CHANGELOG.md

@@ -1,3 +1,17 @@
+## [4.1.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.5...4.1.6) (2022-08-10)
+
+
+### Bug Fixes
+
+* fix abnormal mesh bounds error ([f60d6df](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/f60d6dfe6030ac89527a4265e414e9a0a20d56db)), closes [#213](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/213) [#218](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/218)
+
+## [4.1.5](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.4...4.1.5) (2022-08-10)
+
+
+### Bug Fixes
+
+* fix culling for RectMask2D ([9e2dbe7](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/9e2dbe7758eb28a4f6a7c11113d9169847880f96)), closes [#220](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/220)
+
 ## [4.1.4](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.3...4.1.4) (2022-07-01)
 
 

Scripts/UIParticleRenderer.cs

@@ -14,15 +14,14 @@ namespace Coffee.UIExtensions
     internal class UIParticleRenderer : MaskableGraphic
     {
         private static readonly CombineInstance[] s_CombineInstances = new CombineInstance[] { new CombineInstance() };
-        //private static ParticleSystem.Particle[] s_Particles = new ParticleSystem.Particle[2048];
         private static readonly List<Material> s_Materials = new List<Material>(2);
         private static MaterialPropertyBlock s_Mpb;
         private static readonly List<UIParticleRenderer> s_Renderers = new List<UIParticleRenderer>();
+        private static readonly Vector3[] s_Corners = new Vector3[4];
 
         private ParticleSystemRenderer _renderer;
         private ParticleSystem _particleSystem;
-        internal int _prevParticleCount = 0;
+        private int _prevParticleCount = 0;
-        //private ParticleSystem _emitter;
         private UIParticle _parent;
         private int _index;
         private bool _isTrail;
@@ -33,6 +32,7 @@ namespace Coffee.UIExtensions
         private bool _delay = false;
         private bool _prewarm = false;
         private Material _currentMaterialForRendering;
+        private Bounds _lastBounds;
 
         public override Texture mainTexture
         {
@@ -50,6 +50,37 @@ namespace Coffee.UIExtensions
             }
         }
         
+        private Rect rootCanvasRect
+        {
+            get
+            {
+                s_Corners[0] = transform.TransformPoint(_lastBounds.min.x, _lastBounds.min.y, 0);
+                s_Corners[1] = transform.TransformPoint(_lastBounds.min.x, _lastBounds.max.y, 0);
+                s_Corners[2] = transform.TransformPoint(_lastBounds.max.x, _lastBounds.max.y, 0);
+                s_Corners[3] = transform.TransformPoint(_lastBounds.max.x, _lastBounds.min.y, 0);
+                if (canvas)
+                {
+                    var worldToLocalMatrix = canvas.rootCanvas.transform.worldToLocalMatrix;
+                    for (var i = 0; i < 4; ++i)
+                        s_Corners[i] = worldToLocalMatrix.MultiplyPoint(s_Corners[i]);
+                }
+                var corner1 = (Vector2) s_Corners[0];
+                var corner2 = (Vector2) s_Corners[0];
+                for (var i = 1; i < 4; ++i)
+                {
+                    if (s_Corners[i].x < corner1.x)
+                        corner1.x = s_Corners[i].x;
+                    else if (s_Corners[i].x > corner2.x)
+                        corner2.x = s_Corners[i].x;
+                    if (s_Corners[i].y < corner1.y)
+                        corner1.y = s_Corners[i].y;
+                    else if (s_Corners[i].y > corner2.y)
+                        corner2.y = s_Corners[i].y;
+                }
+                return new Rect(corner1, corner2 - corner1);
+            }
+        }
+
         public static UIParticleRenderer AddRenderer(UIParticle parent, int index)
         {
             // Create renderer object.
@@ -123,6 +154,7 @@ namespace Coffee.UIExtensions
                 material = null;
                 workerMesh.Clear();
                 canvasRenderer.SetMesh(workerMesh);
+                _lastBounds = new Bounds();
                 enabled = false;
             }
         }
@@ -188,6 +220,7 @@ namespace Coffee.UIExtensions
                 Profiler.BeginSample("[UIParticleRenderer] Clear Mesh");
                 workerMesh.Clear();
                 canvasRenderer.SetMesh(workerMesh);
+                _lastBounds = new Bounds();
                 Profiler.EndSample();
 
                 return;
@@ -241,7 +274,7 @@ namespace Coffee.UIExtensions
             }
             else
             {
-                s_CombineInstances[0].mesh.Clear();
+                s_CombineInstances[0].mesh.Clear(false);
             }
             Profiler.EndSample();
 
@@ -269,6 +302,7 @@ namespace Coffee.UIExtensions
                 extents.z = 0;
                 bounds.extents = extents;
                 workerMesh.bounds = bounds;
+                _lastBounds = bounds;
             }
             Profiler.EndSample();
 
@@ -286,6 +320,7 @@ namespace Coffee.UIExtensions
             {
                 if (s_Renderers[i] == this) continue;
                 s_Renderers[i].canvasRenderer.SetMesh(workerMesh);
+                s_Renderers[i]._lastBounds = _lastBounds;
             }
 
             if (!_parent.canRender)
@@ -354,6 +389,17 @@ namespace Coffee.UIExtensions
         {
         }
         
+        public override void Cull(Rect clipRect, bool validRect)
+        {
+            var cull = _lastBounds.extents == Vector3.zero || !validRect || !clipRect.Overlaps(rootCanvasRect, true);
+            if (canvasRenderer.cull == cull) return;
+            
+            canvasRenderer.cull = cull;
+            UISystemProfilerApi.AddMarker("MaskableGraphic.cullingChanged", this);
+            onCullStateChanged.Invoke(cull);
+            OnCullingChanged();
+        }
+
         private Vector3 GetWorldScale()
         {
             Profiler.BeginSample("[UIParticleRenderer] GetWorldScale");

package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "4.1.4",
+  "version": "4.1.6",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {